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  <title>冲刷出（送出）输出缓冲区中的内容</title>
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  <div id="layout-content"><div id="function.ob-flush" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">ob_flush</h1>
  <p class="verinfo">(PHP 4 &gt;= 4.2.0, PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">ob_flush</span> &mdash; <span class="dc-title">冲刷出（送出）输出缓冲区中的内容</span></p>

 </div>
 
 <div class="refsect1 description" id="refsect1-function.ob-flush-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="methodname"><strong>ob_flush</strong></span>
    ( <span class="methodparam">void</span>
   ) : <span class="type"><span class="type void">void</span></span></div>

  <p class="para rdfs-comment">
   这个函数将送出缓冲区的内容（如果里边有内容的话）。如果想进一步处理缓冲区中的内容，必须在<span class="function"><strong>ob_flush()</strong></span>之前调用<span class="function"><a href="ob_get_contents.html" class="function">ob_get_contents()</a></span> ，因为在调用<span class="function"><strong>ob_flush()</strong></span>之后缓冲区内容将被丢弃。
  </p>
  <p class="para">
  此函数不会销毁输出缓冲区，而像<span class="function"><a href="ob_end_flush.html" class="function">ob_end_flush()</a></span> 函数会销毁缓冲区。
  </p>
 </div>


 <div class="refsect1 returnvalues" id="refsect1-function.ob-flush-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   没有返回值。
  </p>
 </div>


 <div class="refsect1 seealso" id="refsect1-function.ob-flush-seealso">
  <h3 class="title">参见</h3>
  <p class="para">
   <ul class="simplelist">
    <li class="member"><span class="function"><a href="ob_get_contents.html" class="function" rel="rdfs-seeAlso">ob_get_contents()</a> - 返回输出缓冲区的内容</span></li>
    <li class="member"><span class="function"><a href="ob_clean.html" class="function" rel="rdfs-seeAlso">ob_clean()</a> - 清空（擦掉）输出缓冲区</span></li>
    <li class="member"><span class="function"><a href="ob_end_flush.html" class="function" rel="rdfs-seeAlso">ob_end_flush()</a> - 冲刷出（送出）输出缓冲区内容并关闭缓冲</span></li>
    <li class="member"><span class="function"><a href="ob_end_clean.html" class="function" rel="rdfs-seeAlso">ob_end_clean()</a> - 清空（擦除）缓冲区并关闭输出缓冲</span></li>
   </ul>
  </p>
 </div>
 

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